Important News & Updates

Achenbach System of Empirically Based Assessment (ASEBA) - Test Observation Form for Ages 2 - 18 - (TOF)


Achenbach, Thomas M. et al.




The TOF is part of the Achenbach System of Empirically Based Assessment (ASEBA). The TOF is a standardized form for rating observations of behavior, affect, and test-taking style during testing sessions for children aged 2-18. The examiner records observations of a child's behavior during the test session and scores the child on 125 problem items, using a 4-point scale. The TOF manual provides details of the development of the TOF and its scales, its relations to other instruments, and guidelines for practical applications. The TOF Profile includes empirically based scales and a DSM oriented scale and subscales for each gender at ages 2-5, 6-11, and 12-18.

Age Range: 



Individual and Group


1 Complete kit:

  • TOF
  • 1 Manual @ $77.00
  • 50 TOF Checklist forms - LIGHT GREEN @ $1.00*
  • 50 TOF- Profile for Boys - LIGHT GREEN @ $1.00*
  • 50 TOF- Profile for Girls - PALE YELLOW @ $1.00*


1) Kelley, M.L., Reitman, D., Noell, G.H. (Eds.). (2002). Practitioner’s Guide to Empirically Based Measures of School Behaviour. New Yorkk: Springer.  (HM 691 P 73 2012; p.99-102; Reference Desk)

2) Archer, R.P., and Wheeler, E.M.A. (Eds.) (2013). Forensic uses of clinical assessment instruments (2nd ed.). New York: Routledge. (RA 1148 F559 2013; p. 311)


Thomas M. Achenbach, Ph.D./ distributed in Canada by Nelson Thompson

Qualification Level: 

Level B or 2

Test Category: 

Behaviour Assessment